X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/78808f320d39f8c22622feb613706325222cfd59..a2e1e2dba007fbef7046852f333c510fbf3b4307:/keyd.c

diff --git a/keyd.c b/keyd.c
index 7b8a18f..c2d8349 100644
--- a/keyd.c
+++ b/keyd.c
@@ -2,11 +2,14 @@
  * keyd.c - key retrieval daemon
  *
  * Jonathan McDowell <noodles@earth.li>
- * 
+ *
  * Copyright 2004 Project Purple
  */
 
+#include <errno.h>
 #include <fcntl.h>
+#include <getopt.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -16,6 +19,7 @@
 #include <sys/un.h>
 #include <unistd.h>
 
+#include "config.h"
 #include "charfuncs.h"
 #include "cleanup.h"
 #include "keyd.h"
@@ -27,6 +31,32 @@
 #include "onak-conf.h"
 #include "parsekey.h"
 
+void daemonize(void)
+{
+	pid_t pid;
+
+	pid = fork();
+
+	if (pid < 0) {
+		logthing(LOGTHING_CRITICAL,
+			"Failed to fork into background: %d (%s)",
+			errno,
+			strerror(errno));
+		exit(EXIT_FAILURE);
+	} else if (pid > 0) {
+		logthing(LOGTHING_INFO, "Backgrounded as pid %d.", pid);
+		exit(EXIT_SUCCESS);
+	}
+
+	pid = setsid();
+
+	freopen("/dev/null", "r", stdin);
+	freopen("/dev/null", "w", stdout);
+	freopen("/dev/null", "w", stderr);
+
+	return;
+}
+
 void iteratefunc(void *ctx, struct openpgp_publickey *key)
 {
 	struct openpgp_packet_list *packets = NULL;
@@ -41,7 +71,7 @@ void iteratefunc(void *ctx, struct openpgp_publickey *key)
 		storebuf.buffer = malloc(8192);
 
 		logthing(LOGTHING_TRACE,
-				"Iterating over 0x%016llX.",
+				"Iterating over 0x%016" PRIX64 ".",
 				get_keyid(key));
 
 		flatten_publickey(key,
@@ -97,7 +127,7 @@ int sock_init(const char *sockname)
 
 int sock_do(int fd)
 {
-	int      cmd = KEYD_CMD_UNKNOWN;
+	uint32_t cmd = KEYD_CMD_UNKNOWN;
 	ssize_t  bytes = 0;
 	ssize_t  count = 0;
 	int	 ret = 0;
@@ -124,6 +154,8 @@ int sock_do(int fd)
 		case KEYD_CMD_VERSION:
 			cmd = KEYD_REPLY_OK;
 			write(fd, &cmd, sizeof(cmd));
+			cmd = sizeof(keyd_version);
+			write(fd, &cmd, sizeof(cmd));
 			write(fd, &keyd_version, sizeof(keyd_version));
 			break;
 		case KEYD_CMD_GET:
@@ -136,7 +168,8 @@ int sock_do(int fd)
 			storebuf.offset = 0;
 			if (ret == 0) {
 				logthing(LOGTHING_INFO,
-						"Fetching 0x%llX, result: %d",
+						"Fetching 0x%" PRIX64
+						", result: %d",
 						keyid,
 						config.dbbackend->
 						fetch_key(keyid, &key, false));
@@ -266,7 +299,8 @@ int sock_do(int fd)
 			}
 			if (ret == 0) {
 				logthing(LOGTHING_INFO,
-						"Deleting 0x%llX, result: %d",
+						"Deleting 0x%" PRIX64
+						", result: %d",
 						keyid,
 						config.dbbackend->delete_key(
 							keyid, false));
@@ -281,6 +315,8 @@ int sock_do(int fd)
 			}
 			if (ret == 0) {
 				keyid = config.dbbackend->getfullkeyid(keyid);
+				cmd = sizeof(keyid);
+				write(fd, &cmd, sizeof(cmd));
 				write(fd, &keyid, sizeof(keyid));
 			}
 			break;
@@ -293,9 +329,16 @@ int sock_do(int fd)
 			write(fd, &bytes, sizeof(bytes));
 			break;
 		case KEYD_CMD_CLOSE:
+			cmd = KEYD_REPLY_OK;
+			write(fd, &cmd, sizeof(cmd));
 			ret = 1;
 			break;
 		case KEYD_CMD_QUIT:
+			cmd = KEYD_REPLY_OK;
+			write(fd, &cmd, sizeof(cmd));
+			logthing(LOGTHING_NOTICE,
+				"Exiting due to quit request.");
+			ret = 1;
 			trytocleanup();
 			break;
 		default:
@@ -311,7 +354,8 @@ int sock_do(int fd)
 
 int sock_close(int fd)
 {
-	return shutdown(fd, SHUT_RDWR);
+	shutdown(fd, SHUT_RDWR);
+	return close(fd);
 }
 
 int sock_accept(int fd)
@@ -335,17 +379,56 @@ int sock_accept(int fd)
 	return 1;
 }
 
+static void usage(void)
+{
+	puts("keyd " PACKAGE_VERSION " - backend key serving daemon for the "
+		"onak PGP keyserver.\n");
+	puts("Usage:\n");
+	puts("\tkeyd [options]\n");
+	puts("\tOptions:\n:");
+	puts("-c <file> - use <file> as the config file");
+	puts("-f        - run in the foreground");
+	puts("-h        - show this help text");
+	exit(EXIT_FAILURE);
+}
+
 int main(int argc, char *argv[])
 {
 	int fd = -1;
 	fd_set rfds;
 	char sockname[1024];
+	char *configfile = NULL;
+	bool foreground = false;
+	int optchar;
+
+	while ((optchar = getopt(argc, argv, "c:fh")) != -1 ) {
+		switch (optchar) {
+		case 'c':
+			configfile = strdup(optarg);
+			break;
+		case 'f':
+			foreground = true;
+			break;
+		case 'h':
+		default:
+			usage();
+			break;
+		}
+	}
 
-	readconfig(NULL);
+	readconfig(configfile);
+	free(configfile);
+	configfile = NULL;
 	initlogthing("keyd", config.logfile);
+	config.use_keyd = false;
+
+	if (!foreground) {
+		daemonize();
+	}
 
 	catchsignals();
-	
+	signal(SIGPIPE, SIG_IGN);
+
 	snprintf(sockname, 1023, "%s/%s", config.db_dir, KEYD_SOCKET);
 	fd = sock_init(sockname);
 
@@ -368,6 +451,6 @@ int main(int argc, char *argv[])
 
 	cleanuplogthing();
 	cleanupconfig();
-	
+
 	return(EXIT_SUCCESS);
 }